Safe.



Jo HERMANN.,

SAFE.

union-101| rmzn 81:21.28. um.

1,123,291. Patented Jan-5,1915.

2 SHEETS-SHEET 1.

JAQ 26M JOHN HEHMH/VM Mmmm BY' www:

Flrro Riley.

J. HERMANN.

SAFE.

APPLICATION FILED BYEPTJB, 1911.

NI Nomos.

Patented J an. 5, 1915.

2 SHEETS-SHEET 2.

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BY JOHN HERMHN/v.

FTTORNEY:

lll "Ns rn Pnnmuym wasmNnluN D C UNITED STATES PATENT OFFICE.

JOHN HERMANN, OF BAN FRANCISCO, CALIFORNIA.

SAFE.

Speomoation of Letters Patent.

Patented Jan. 5, '1915.

Application illcd September 28, 1911. Serial No. 651,724.

" -lire proof safes, vaults, etc., and the object of which is to provide means in this class of inventions for resisting or checking the exterior effect of heat against the interior thereof, thereby insuring the safety of the contents.

To carry out my invention in practice I construct an outer casing with an inwardly projecting door jamb to which I-suspend an inner casing leaving a dead air chamber between them and provide both respectively with an outer and inner wall.

Between the walls of the outer casing I fill fire-proof material which may be in powder or granulated form while the walls of the inner easing contain similar material but referably in sheet form, all of which will e fully described in detail hereinafter and the novel combinations of the coperating parts. pointed out in the claim at the end hereof.

In the accompanying two sheets of drawings which form a part of the following specification I have illustrated my invention in what I consider its, best form as I am .aware many modifications may be made without changing the scope thereof, and for the purpose of this application I shall refer to my invention as applied to fire-proof safes only.

In the drawings, Figure 1, represents a sectional elevation of my improved safe showing particularly the outer and inner casings and the dead air chamber therebetween. Fig. 2, is a cross section of Fig. 1 taken on otted line a. b showing particularly the method of suspending the inner easing. Fig. 8, is an enlarged perspective view of a broken portion of the inner casing and Fig. 4, is also an enlarged sectional lan view of a corner of my invention, showing particularly the construction of the frame-work.

Similar characters of reference denote corresponding parts throughout the several views of the drawings, in which:

A- represents the outer casing provided with door B: and C the inner casing also provided with door D. The door B of the outer casin is hung thereon as at E, and is provided with the usual combination loch F, iandle G and the inwardly extending` step ed extension H to which are secured the inner casing C and the plates forming ,Y the dead air chamber L. To the outer cas ing of a safe is secured an inwardly proj ect.- ing stepped extension forming a door janib I having the extension K which supports the member K provided with the lug K2, which forms a stop for the door D of the inner cas` ing, and thereby providing a dead nir space between the inner door and the inner easing C of the outer door. As shown by Fig. 4, the plates 2 and 4 are secured to the jaml I by screws or other similar securing means which extend through openings in the j amb and through the respective plates, from where they extend through the clamping members L. It is obvious that this structure provides an efficient means for holding the plates 2 and 4 in spaced relation, and a securing device for the plates, that may only be operated when the door is in an open position.

The outer casing A is formed by an outer wall 1 and an inner wall 2 the space between them being filled eompactly with a heat resisting material 3 which may be of the powder or granulated form, and the inner casing, C is also formed by an outer wall 4 and an inner wall 5 arranged similarly to that of the outer casing A just described, but the space between these walls is preferably filled with layers consisting of sheets of heat resisting material 0 which may be held in spaced relation by any suitable means such as spacing blocks, or by forming grooves or slots in upper and lower layers of sheets to accommodate the ends of the sheets extending at right angles to the upper and lower sheets. The sheets of heat resisting material are of am7 suitable material such as for instance, asbestos, magnesia. etc., as shown in the drawings and particularly in Fig. 3. The extension K which as before stated. forms a part of the jamb I, terminates in an apertured extension, to which is secured the inner wall 5, through the medium of the screw K'. the threaded portion of which being positioned in the threaded openin K".

It will be noted in Figs. 2 and 4 that the doors particularly door B is constructed and arranged in the saine manner as the casings A ancl- C including the dead-'air-chamber L. Between the sheets of material employed in the construction oi the inner casing C dead'- air spaces may be formed thereby reducing the conductivity of heat through the casing; Thus, with the above construction I have formed' three distinct' and separateheat` resisting mediums, namely the outer casingv A, the dead-air chamber L and the inner casing 0, alliowhich renden the contents ofthe innercasingf safe. from the.4 exterior` heat .uponz the' outer 'casing A..

Believingl haveproduced'.novel` anduse- -ful .improvements inthe class to-which. my invention appertainmand having thus de.- seribedtthe-same toibo understoodlby me c hanics skilled, in the.

What. I claim. and-desire to secure by United. States -Letters .Petent.-is.:,

Ai. safe comprising; outer walls, a door supported .by ons yof the. walls, a door jamb secured' tq'one of-'the outer wallsrsaidqamb having stepped portions terminating in'. a relatively' straight. portiong. shoulders ad j acentl the straight portion, a plate having one of its ends abutting one of the shoulders,a clamping member engaging one side of the plate, means extending through the clamping member and straight portion for securing the plate to the jamb, spaced plates secured tothe stepped portions of the jamb, the spaces between the plates forming compartments for housing heat resisting inaterial, clamping members coperating with thasteppedportions of the jamb for clamping` the-rplates therebetween, means extendingy through. the stepped portions, and clanipingmexnbers'for rigidly securing the plates to the stepped portions, said. means being. operated only when the door is in an open. position.

In .testimony that I. claim the foregoing I have-hereto setv my hand: this th day of Aug, 1911, in theipresence of witnesses.

JOHN HERMANN. Witnesses:

BLANCHE C..C'11Esm,

T. D. Hermine.

(lapin #what m be obtained lotve cents each, by addressing the Commissioner of Entente.

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